Piannaman@aol.com wrote: > Hi all, > > Sorry if this is a rerun. Didn't seem to go through the first time! > > I dug out a diagram of the Erard action that I'm trying to get a > handle on. Any suggestions on regulation of this would be welcomed! > Quentin and Pierre have been most helpful. > > I don't know if the 1821 on the diagram is the year this action was > patented or not. I can only assume that it is. > > Curious animal, that's for sure. > > Dave Stahl The main difference I see is in the damper mechanism. Other regulation procedures such as jack alignment to knuckle, repetition lever height, hammer blow distance, let-off, drop, and repetition spring strength ("hammer rise") should be fairly straightforward. I can't quite figure out the backchecking, and it looks like there's some sort of "sticker" that connects the wippens to the keys, instead of the wippen just sitting on a capstan screw. Is that an adjustable dowel or button on the lower end of the sticker? So those things you'll have to figure out, but with a little detective work and experimentation, it shouldn't be all that much different from a more modern action with similar wippens.. There are stranger animals out there. --David Nereson, RPT
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